Finlandia Sauna has been manufacturing authentic Finnish saunas since 1964. Finlandia is the oldest sauna company under original ownership, and is located in the Finlandia Business Park in Portland, Oregon. To be at the heart of the timber country permits to provide the best quality and selection of softwoods. Finlandia specializes only in Finnish saunas, the sauna is their only business.

Finlandia Sauna builds standard and custom, precut and prefabricated saunas out of premium western softwoods. They also sell sauna accessories. They import sauna heaters from Harvia in Finland, because Harvia is one of the largest heater manufacturers with a broad portfolio, and their heaters are unequaled in quality and in providing the right sauna climate for the bather. These are sold also under the Finlandia-brand.

The first sauna was brought to America by Finns who settled in the commonwealth of Delaware over 360 years ago. However, it wasn't until the early 1960s that a few manufacturers began promoting the sauna to the American public. At that time, Reino Tarkiainen, a young Finn who had come to Astoria, Oregon, at the age of 15, had a dream to promote the authentic sauna of his homeland. After studying master carpentry, architectural design, and mechanical engineering in college, he gained the necessary background to pursue his dream. The present Finlandia Business Park was completed in 1995, with 55,000 sq. ft. of office-warehouse space. It is the largest privately owned sauna manufacturing facility in the U.S.